element
{
  color:red
}
element
{
  color:#f00
}
element
{
  color:#ff0000
}
element
{
  color:rgb(255,0,0)
}
element
{
  color:rgb(100%,0%,0%)
}
element
{
  color:hsl(0,100%,50%)
}
element
{
  color:rgba(255,0,0,0.5)
}
element
{
  color:hsla(0,100%,50%,0.5)
}
